/**
  ******************************************************************************
  * @file     startup_at32f403a_407.s
  * @brief    at32f403a_407xx devices vector table for gcc toolchain.
  *           this module performs:
  *           - set the initial sp
  *           - set the initial pc == reset_handler,
  *           - set the vector table entries with the exceptions isr address
  *           - configure the clock system and the external sram to
  *             be used as data memory (optional, to be enabled by user)
  *           - branches to main in the c library (which eventually
  *             calls main()).
  *           after reset the cortex-m4 processor is in thread mode,
  *           priority is privileged, and the stack is set to main.
  ******************************************************************************
  */

  .syntax unified
  .cpu cortex-m4
  .fpu softvfp
  .thumb

.global  g_pfnVectors
.global  Default_Handler

/* start address for the initialization values of the .data section.
defined in linker script */
.word  _sidata
/* start address for the .data section. defined in linker script */
.word  _sdata
/* end address for the .data section. defined in linker script */
.word  _edata
/* start address for the .bss section. defined in linker script */
.word  _sbss
/* end address for the .bss section. defined in linker script */
.word  _ebss
/* stack used for SystemInit_ExtMemCtl; always internal RAM used */

/**
 * @brief  This is the code that gets called when the processor first
 *          starts execution following a reset event. Only the absolutely
 *          necessary set is performed, after which the application
 *          supplied main() routine is called.
 * @param  None
 * @retval None
*/

    .section  .text.Reset_Handler
  .weak  Reset_Handler
  .type  Reset_Handler, %function
Reset_Handler:

/* Copy the data segment initializers from flash to SRAM */
  movs  r1, #0
  b  LoopCopyDataInit

CopyDataInit:
  ldr  r3, =_sidata
  ldr  r3, [r3, r1]
  str  r3, [r0, r1]
  adds  r1, r1, #4

LoopCopyDataInit:
  ldr  r0, =_sdata
  ldr  r3, =_edata
  adds  r2, r0, r1
  cmp  r2, r3
  bcc  CopyDataInit
  ldr  r2, =_sbss
  b  LoopFillZerobss
/* Zero fill the bss segment. */
FillZerobss:
  movs  r3, #0
  str  r3, [r2], #4

LoopFillZerobss:
  ldr  r3, = _ebss
  cmp  r2, r3
  bcc  FillZerobss

/* Call the clock system intitialization function.*/
  bl  SystemInit
/* Call static constructors */
  bl __libc_init_array
/* Call the application's entry point.*/
  bl  main
  bx  lr
.size  Reset_Handler, .-Reset_Handler

/**
 * @brief  This is the code that gets called when the processor receives an
 *         unexpected interrupt.  This simply enters an infinite loop, preserving
 *         the system state for examination by a debugger.
 * @param  None
 * @retval None
*/
    .section  .text.Default_Handler,"ax",%progbits
Default_Handler:
Infinite_Loop:
  b  Infinite_Loop
  .size  Default_Handler, .-Default_Handler
/******************************************************************************
*
* The minimal vector table for a Cortex M3. Note that the proper constructs
* must be placed on this to ensure that it ends up at physical address
* 0x0000.0000.
*
*******************************************************************************/
   .section  .isr_vector,"a",%progbits
  .type  g_pfnVectors, %object
  .size  g_pfnVectors, .-g_pfnVectors
    
    
g_pfnVectors:
  .word     _estack
  .word     Reset_Handler
  .word     HalExcNMI
  .word     HalExcHardFault
  .word     HalExcMemFault
  .word     HalExcBusFault
  .word     HalExcUsageFault
  .word     0
  .word     0
  .word     0
  .word     0
  .word     SVC_Handler
  .word     DebugMon_Handler
  .word     0
  .word     HalPendSV
  .word     OsTickHandler

  /* External Interrupts */
  .word     WWDT_IRQHandler                     /* Window Watchdog Timer */
  .word     PVM_IRQHandler                      /* PVM through EXINT Line detect          */
  .word     TAMPER_IRQHandler                   /* Tamper          */
  .word     RTC_IRQHandler                      /* RTC          */
  .word     FLASH_IRQHandler                    /* Flash          */
  .word     CRM_IRQHandler                      /* CRM          */
  .word     EXINT0_IRQHandler                   /* EXINT Line 0          */
  .word     EXINT1_IRQHandler                   /* EXINT Line 1          */
  .word     EXINT2_IRQHandler                   /* EXINT Line 2          */
  .word     EXINT3_IRQHandler                   /* EXINT Line 3          */
  .word     EXINT4_IRQHandler                   /* EXINT Line 4          */
  .word     DMA1_Channel1_IRQHandler            /* DMA1 Channel 1          */
  .word     DMA1_Channel2_IRQHandler            /* DMA1 Channel 2          */
  .word     DMA1_Channel3_IRQHandler            /* DMA1 Channel 3          */
  .word     DMA1_Channel4_IRQHandler            /* DMA1 Channel 4          */
  .word     DMA1_Channel5_IRQHandler            /* DMA1 Channel 5          */
  .word     DMA1_Channel6_IRQHandler            /* DMA1 Channel 6          */
  .word     DMA1_Channel7_IRQHandler            /* DMA1 Channel 7          */
  .word     ADC1_2_IRQHandler                   /* ADC1 & ADC2          */
  .word     USBFS_H_CAN1_TX_IRQHandler          /* USB High Priority or CAN1 TX          */
  .word     USBFS_L_CAN1_RX0_IRQHandler         /* USB Low  Priority or CAN1 RX0           */
  .word     CAN1_RX1_IRQHandler                 /* CAN1 RX1           */
  .word     CAN1_SE_IRQHandler                  /* CAN1 SE          */
  .word     EXINT9_5_IRQHandler                 /* EXINT Line [9:5]          */
  .word     TMR1_BRK_TMR9_IRQHandler            /* TMR1 Brake and TMR9          */
  .word     TMR1_OVF_TMR10_IRQHandler           /* TMR1 overflow and TMR10          */
  .word     TMR1_TRG_HALL_TMR11_IRQHandler      /* TMR1 Trigger and hall and TMR11          */
  .word     TMR1_CH_IRQHandler                  /* TMR1 channel          */
  .word     TMR2_GLOBAL_IRQHandler              /* TMR2          */
  .word     TMR3_GLOBAL_IRQHandler              /* TMR3          */
  .word     TMR4_GLOBAL_IRQHandler              /* TMR4          */
  .word     I2C1_EVT_IRQHandler                 /* I2C1 Event          */
  .word     I2C1_ERR_IRQHandler                 /* I2C1 Error          */
  .word     I2C2_EVT_IRQHandler                 /* I2C2 Event          */
  .word     I2C2_ERR_IRQHandler                 /* I2C2 Error          */
  .word     SPI1_IRQHandler                     /* SPI1          */
  .word     SPI2_I2S2EXT_IRQHandler             /* SPI2 & I2S2EXT          */
  .word     USART1_IRQHandler                   /* USART1          */
  .word     USART2_IRQHandler                   /* USART2          */
  .word     USART3_IRQHandler                   /* USART3          */
  .word     EXINT15_10_IRQHandler               /* EXINT Line [15:10]          */
  .word     RTCAlarm_IRQHandler                 /* RTC Alarm through EXINT Line          */
  .word     USBFSWakeUp_IRQHandler              /* USB Wakeup from suspend          */
  .word     TMR8_BRK_TMR12_IRQHandler           /* TMR8 Brake and TMR12          */
  .word     TMR8_OVF_TMR13_IRQHandler           /* TMR8 overflow and TMR13          */
  .word     TMR8_TRG_HALL_TMR14_IRQHandler      /* TMR8 Trigger and hall and TMR14          */
  .word     TMR8_CH_IRQHandler                  /* TMR8 channel          */
  .word     ADC3_IRQHandler                     /* ADC3          */
  .word     XMC_IRQHandler                      /* XMC          */
  .word     SDIO1_IRQHandler                    /* SDIO1          */
  .word     TMR5_GLOBAL_IRQHandler              /* TMR5          */
  .word     SPI3_I2S3EXT_IRQHandler             /* SPI3 & I2S3EXT          */
  .word     UART4_IRQHandler                    /* UART4          */
  .word     UART5_IRQHandler                    /* UART5          */
  .word     TMR6_GLOBAL_IRQHandler              /* TMR6          */
  .word     TMR7_GLOBAL_IRQHandler              /* TMR7          */
  .word     DMA2_Channel1_IRQHandler            /* DMA2 Channel1          */
  .word     DMA2_Channel2_IRQHandler            /* DMA2 Channel2          */
  .word     DMA2_Channel3_IRQHandler            /* DMA2 Channel3          */
  .word     DMA2_Channel4_5_IRQHandler          /* DMA2 Channel4 & Channel5          */
  .word     SDIO2_IRQHandler                    /* SDIO2          */
  .word     I2C3_EVT_IRQHandler                 /* I2C3 Event          */
  .word     I2C3_ERR_IRQHandler                 /* I2C3 Error          */
  .word     SPI4_IRQHandler                     /* SPI4          */
  .word     0                                   /* Reserved          */
  .word     0                                   /* Reserved          */
  .word     0                                   /* Reserved          */
  .word     0                                   /* Reserved          */
  .word     CAN2_TX_IRQHandler                  /* CAN2 TX          */
  .word     CAN2_RX0_IRQHandler                 /* CAN2 RX0           */
  .word     CAN2_RX1_IRQHandler                 /* CAN2 RX1           */
  .word     CAN2_SE_IRQHandler                  /* CAN2 SE          */
  .word     ACC_IRQHandler                      /* ACC          */
  .word     USBFS_MAPH_IRQHandler               /* USB Map High          */
  .word     USBFS_MAPL_IRQHandler               /* USB Map Low          */
  .word     DMA2_Channel6_7_IRQHandler          /* DMA2 Channel6 & Channel7          */
  .word     USART6_IRQHandler                   /* USART6          */
  .word     UART7_IRQHandler                    /* UART7          */
  .word     UART8_IRQHandler                    /* UART8          */
  .word     EMAC_IRQHandler                     /* EMAC          */
  .word     EMAC_WKUP_IRQHandler                /* EMAC_WKUP          */
                
                
/*******************************************************************************
*
* Provide weak aliases for each Exception handler to the Default_Handler.
* As they are weak aliases, any function with the same name will override
* this definition.
*
*******************************************************************************/
   .weak      HalExcNMI
   .thumb_set HalExcNMI,Default_Handler
  
   .weak      HalExcHardFault
   .thumb_set HalExcHardFault,Default_Handler
  
   .weak      HalExcMemFault
   .thumb_set HalExcMemFault,Default_Handler
  
   .weak      HalExcBusFault
   .thumb_set HalExcBusFault,Default_Handler

   .weak      HalExcUsageFault
   .thumb_set HalExcUsageFault,Default_Handler

   .weak      SVC_Handler
   .thumb_set SVC_Handler,Default_Handler


   .weak      DebugMon_Handler
   .thumb_set DebugMon_Handler,Default_Handler

   .weak      HalPendSV
   .thumb_set HalPendSV,Default_Handler

   .weak      OsTickHandler
   .thumb_set OsTickHandler,Default_Handler

   .weak      WWDT_IRQHandler
   .thumb_set WWDT_IRQHandler,Default_Handler

   .weak      PVM_IRQHandler
   .thumb_set PVM_IRQHandler,Default_Handler

   .weak      TAMPER_IRQHandler
   .thumb_set TAMPER_IRQHandler,Default_Handler

   .weak      RTC_IRQHandler
   .thumb_set RTC_IRQHandler,Default_Handler

   .weak      FLASH_IRQHandler
   .thumb_set FLASH_IRQHandler,Default_Handler

   .weak      CRM_IRQHandler
   .thumb_set CRM_IRQHandler,Default_Handler

   .weak      EXINT0_IRQHandler
   .thumb_set EXINT0_IRQHandler,Default_Handler

   .weak      EXINT1_IRQHandler
   .thumb_set EXINT1_IRQHandler,Default_Handler

   .weak      EXINT2_IRQHandler
   .thumb_set EXINT2_IRQHandler,Default_Handler

   .weak      EXINT3_IRQHandler
   .thumb_set EXINT3_IRQHandler,Default_Handler

   .weak      EXINT4_IRQHandler
   .thumb_set EXINT4_IRQHandler,Default_Handler

   .weak      DMA1_Channel1_IRQHandler
   .thumb_set DMA1_Channel1_IRQHandler,Default_Handler

   .weak      DMA1_Channel2_IRQHandler
   .thumb_set DMA1_Channel2_IRQHandler,Default_Handler

   .weak      DMA1_Channel3_IRQHandler
   .thumb_set DMA1_Channel3_IRQHandler,Default_Handler

   .weak      DMA1_Channel4_IRQHandler
   .thumb_set DMA1_Channel4_IRQHandler,Default_Handler

   .weak      DMA1_Channel5_IRQHandler
   .thumb_set DMA1_Channel5_IRQHandler,Default_Handler

   .weak      DMA1_Channel6_IRQHandler
   .thumb_set DMA1_Channel6_IRQHandler,Default_Handler

   .weak      DMA1_Channel7_IRQHandler
   .thumb_set DMA1_Channel7_IRQHandler,Default_Handler

   .weak      ADC1_2_IRQHandler
   .thumb_set ADC1_2_IRQHandler,Default_Handler

   .weak      USBFS_H_CAN1_TX_IRQHandler
   .thumb_set USBFS_H_CAN1_TX_IRQHandler,Default_Handler

   .weak      USBFS_L_CAN1_RX0_IRQHandler
   .thumb_set USBFS_L_CAN1_RX0_IRQHandler,Default_Handler

   .weak      CAN1_RX1_IRQHandler
   .thumb_set CAN1_RX1_IRQHandler,Default_Handler

   .weak      CAN1_SE_IRQHandler
   .thumb_set CAN1_SE_IRQHandler,Default_Handler

   .weak      EXINT9_5_IRQHandler
   .thumb_set EXINT9_5_IRQHandler,Default_Handler

   .weak      TMR1_BRK_TMR9_IRQHandler
   .thumb_set TMR1_BRK_TMR9_IRQHandler,Default_Handler

   .weak      TMR1_OVF_TMR10_IRQHandler
   .thumb_set TMR1_OVF_TMR10_IRQHandler,Default_Handler

   .weak      TMR1_TRG_HALL_TMR11_IRQHandler
   .thumb_set TMR1_TRG_HALL_TMR11_IRQHandler,Default_Handler

   .weak      TMR1_CH_IRQHandler
   .thumb_set TMR1_CH_IRQHandler,Default_Handler

   .weak      TMR2_GLOBAL_IRQHandler
   .thumb_set TMR2_GLOBAL_IRQHandler,Default_Handler

   .weak      TMR3_GLOBAL_IRQHandler
   .thumb_set TMR3_GLOBAL_IRQHandler,Default_Handler

   .weak      TMR4_GLOBAL_IRQHandler
   .thumb_set TMR4_GLOBAL_IRQHandler,Default_Handler

   .weak      I2C1_EVT_IRQHandler
   .thumb_set I2C1_EVT_IRQHandler,Default_Handler

   .weak      I2C1_ERR_IRQHandler
   .thumb_set I2C1_ERR_IRQHandler,Default_Handler

   .weak      I2C2_EVT_IRQHandler
   .thumb_set I2C2_EVT_IRQHandler,Default_Handler

   .weak      I2C2_ERR_IRQHandler
   .thumb_set I2C2_ERR_IRQHandler,Default_Handler

   .weak      SPI1_IRQHandler
   .thumb_set SPI1_IRQHandler,Default_Handler

   .weak      SPI2_I2S2EXT_IRQHandler
   .thumb_set SPI2_I2S2EXT_IRQHandler,Default_Handler

   .weak      USART1_IRQHandler
   .thumb_set USART1_IRQHandler,Default_Handler

   .weak      USART2_IRQHandler
   .thumb_set USART2_IRQHandler,Default_Handler

   .weak      USART3_IRQHandler
   .thumb_set USART3_IRQHandler,Default_Handler

   .weak      EXINT15_10_IRQHandler
   .thumb_set EXINT15_10_IRQHandler,Default_Handler

   .weak      RTCAlarm_IRQHandler
   .thumb_set RTCAlarm_IRQHandler,Default_Handler

   .weak      USBFSWakeUp_IRQHandler
   .thumb_set USBFSWakeUp_IRQHandler,Default_Handler

   .weak      TMR8_BRK_TMR12_IRQHandler
   .thumb_set TMR8_BRK_TMR12_IRQHandler,Default_Handler

   .weak      TMR8_OVF_TMR13_IRQHandler
   .thumb_set TMR8_OVF_TMR13_IRQHandler,Default_Handler

   .weak      TMR8_TRG_HALL_TMR14_IRQHandler
   .thumb_set TMR8_TRG_HALL_TMR14_IRQHandler,Default_Handler

   .weak      TMR8_CH_IRQHandler
   .thumb_set TMR8_CH_IRQHandler,Default_Handler

   .weak      ADC3_IRQHandler
   .thumb_set ADC3_IRQHandler,Default_Handler

   .weak      XMC_IRQHandler
   .thumb_set XMC_IRQHandler,Default_Handler

   .weak      SDIO1_IRQHandler
   .thumb_set SDIO1_IRQHandler,Default_Handler

   .weak      TMR5_GLOBAL_IRQHandler
   .thumb_set TMR5_GLOBAL_IRQHandler,Default_Handler

   .weak      SPI3_I2S3EXT_IRQHandler
   .thumb_set SPI3_I2S3EXT_IRQHandler,Default_Handler

   .weak      UART4_IRQHandler
   .thumb_set UART4_IRQHandler,Default_Handler

   .weak      UART5_IRQHandler
   .thumb_set UART5_IRQHandler,Default_Handler

   .weak      TMR6_GLOBAL_IRQHandler
   .thumb_set TMR6_GLOBAL_IRQHandler,Default_Handler

   .weak      TMR7_GLOBAL_IRQHandler
   .thumb_set TMR7_GLOBAL_IRQHandler,Default_Handler

   .weak      DMA2_Channel1_IRQHandler
   .thumb_set DMA2_Channel1_IRQHandler,Default_Handler

   .weak      DMA2_Channel2_IRQHandler
   .thumb_set DMA2_Channel2_IRQHandler,Default_Handler

   .weak      DMA2_Channel3_IRQHandler
   .thumb_set DMA2_Channel3_IRQHandler,Default_Handler

   .weak      DMA2_Channel4_5_IRQHandler
   .thumb_set DMA2_Channel4_5_IRQHandler,Default_Handler

   .weak      SDIO2_IRQHandler
   .thumb_set SDIO2_IRQHandler,Default_Handler

   .weak      I2C3_EVT_IRQHandler
   .thumb_set I2C3_EVT_IRQHandler,Default_Handler

   .weak      I2C3_ERR_IRQHandler
   .thumb_set I2C3_ERR_IRQHandler,Default_Handler

   .weak      SPI4_IRQHandler
   .thumb_set SPI4_IRQHandler,Default_Handler

   .weak      CAN2_TX_IRQHandler
   .thumb_set CAN2_TX_IRQHandler,Default_Handler

   .weak      CAN2_RX0_IRQHandler
   .thumb_set CAN2_RX0_IRQHandler,Default_Handler

   .weak      CAN2_RX1_IRQHandler
   .thumb_set CAN2_RX1_IRQHandler,Default_Handler

   .weak      CAN2_SE_IRQHandler
   .thumb_set CAN2_SE_IRQHandler,Default_Handler

   .weak      ACC_IRQHandler
   .thumb_set ACC_IRQHandler,Default_Handler

   .weak      USBFS_MAPH_IRQHandler
   .thumb_set USBFS_MAPH_IRQHandler,Default_Handler

   .weak      USBFS_MAPL_IRQHandler
   .thumb_set USBFS_MAPL_IRQHandler,Default_Handler

   .weak      DMA2_Channel6_7_IRQHandler
   .thumb_set DMA2_Channel6_7_IRQHandler,Default_Handler

   .weak      USART6_IRQHandler
   .thumb_set USART6_IRQHandler,Default_Handler

   .weak      UART7_IRQHandler
   .thumb_set UART7_IRQHandler,Default_Handler

   .weak      UART8_IRQHandler
   .thumb_set UART8_IRQHandler,Default_Handler

   .weak      EMAC_IRQHandler
   .thumb_set EMAC_IRQHandler,Default_Handler

   .weak      EMAC_WKUP_IRQHandler
   .thumb_set EMAC_WKUP_IRQHandler,Default_Handler
